Cambodia's Tainted Election

Despite evidence of fraud, the opposition should fight inside the National Assembly.

Updated Aug. 1, 2013 6:10 p.m. ET

The evidence that fraud may have changed the result of Cambodia's election last Sunday continues to accumulate. The opposition, independent election monitoring groups and foreign governments including the U.S. have all called for an investigation. So far the ruling Cambodian People's Party is minimizing the problems and saying it may agree to an investigation, but not an independent one.

According to the still unofficial tally from the National Election Commission, the CPP retained a majority of 68 seats in the 123-seat...